pub trait FileReadWriteVolatile {
    // Required methods
    fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>;
    fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>;

    // Provided methods
    fn read_vectored_volatile(
        &mut self,
        bufs: &[VolatileSlice<'_>]
    ) -> Result<usize> { ... }
    fn read_exact_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()> { ... }
    fn write_vectored_volatile(
        &mut self,
        bufs: &[VolatileSlice<'_>]
    ) -> Result<usize> { ... }
    fn write_all_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()> { ... }
}
Expand description

A trait similar to Read and Write, but uses volatile memory as buffers.

Required Methods§

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fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

Read bytes from this file into the given slice, returning the number of bytes read on success.

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fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

Write bytes from the slice to the given file, returning the number of bytes written on success.

Provided Methods§

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fn read_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

Like read_volatile, except it reads to a slice of buffers. Data is copied to fill each buffer in order, with the final buffer written to possibly being only partially filled. This method must behave as a single call to read_volatile with the buffers concatenated would. The default implementation calls read_volatile with either the first nonempty buffer provided, or returns Ok(0) if none exists.

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fn read_exact_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()>

Reads bytes from this into the given slice until all bytes in the slice are written, or an error is returned.

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fn write_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

Like write_volatile, except that it writes from a slice of buffers. Data is copied from each buffer in order, with the final buffer read from possibly being only partially consumed. This method must behave as a call to write_volatile with the buffers concatenated would. The default implementation calls write_volatile with either the first nonempty buffer provided, or returns Ok(0) if none exists.

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fn write_all_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()>

Write bytes from the slice to the given file until all the bytes from the slice have been written, or an error is returned.

Implementations on Foreign Types§

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impl FileReadWriteVolatile for File

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fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn read_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

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fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn write_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

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impl<'a, T: FileReadWriteVolatile + ?Sized> FileReadWriteVolatile for &'a mut T

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fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn read_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

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fn read_exact_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()>

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fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn write_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

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fn write_all_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<()>

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impl FileReadWriteVolatile for UnixStream

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fn read_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn read_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

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fn write_volatile(&mut self, slice: VolatileSlice<'_>) -> Result<usize>

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fn write_vectored_volatile( &mut self, bufs: &[VolatileSlice<'_>] ) -> Result<usize>

Implementors§